The Dinosaur Chief appeared in the Dinosaurs episode "Hurling Day". In the year 61,00,003 BC (on a Thursday), the aging tribal leader announces his reluctance to be a burden on the rest of the herd. He declared that every dinosaur, upon reaching their 72nd birthday, should be hurled into a tar-pit. Thus Hurling Day was born. When asked if guys could use Hurling Day as an excuse to get rid of their mother-in-laws, the chief sagely replied, "Sure, why not?"
- His name is a reference to the La Brea Tar Pits in California.
- He is the only dinosaur character on the show to have hair (a long beard).